Ole Rieke¹, Laura Herraiz-Borreguero^2,3, Madelaine Rosevear^4,5, Paul Spence^5,6, Matthis Auger^4,5, Benjamin Keith Galton-Fenzi^3,7, Marcus Gutjahr⁸, Nina Keul⁹, Lester Lembke-Jene¹⁰, Maxim Nikurashin^1,5, Beatriz Pena-Molino^2,3 and Sarah Thompson¹, (1)Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, (2)CSIRO Environment, Hobart, TAS, Australia, (3)Australian Antarctic Program Partnership (AAPP), Hobart, TAS, Australia, (4)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, (5)ARC Australian Centre for Excellence in Antarctic Science, University of Tasmania, Hobart, TAS, Australia, (6)University of Tasmania, Hobart, TAS, Australia, (7)Australian Antarctic Division, Kingston, TAS, Australia, (8)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (9)University of Kiel, Institute of Geosciences, Kiel, Germany, (10)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany